ATE49588T1 - METHACRYLIC ACID PURIFICATION METHOD. - Google Patents
METHACRYLIC ACID PURIFICATION METHOD.Info
- Publication number
- ATE49588T1 ATE49588T1 AT85307233T AT85307233T ATE49588T1 AT E49588 T1 ATE49588 T1 AT E49588T1 AT 85307233 T AT85307233 T AT 85307233T AT 85307233 T AT85307233 T AT 85307233T AT E49588 T1 ATE49588 T1 AT E49588T1
- Authority
- AT
- Austria
- Prior art keywords
- methacrylic acid
- purification method
- acid purification
- distillation
- beta
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/42—Separation; Purification; Stabilisation; Use of additives
- C07C51/43—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation
- C07C51/44—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation by distillation
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/42—Separation; Purification; Stabilisation; Use of additives
- C07C51/50—Use of additives, e.g. for stabilisation
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Crystallography & Structural Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Polymerisation Methods In General (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
- Medicines Containing Plant Substances (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
A method for inhibiting the polymerization of an alpha-, beta-ethylenically unsaturated monocarboxylic acid during its recovery by distillation is disclosed.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US65956884A | 1984-10-10 | 1984-10-10 | |
EP85307233A EP0178168B1 (en) | 1984-10-10 | 1985-10-09 | Process for purification of methacrylic acid |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE49588T1 true ATE49588T1 (en) | 1990-02-15 |
Family
ID=24645887
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT85307233T ATE49588T1 (en) | 1984-10-10 | 1985-10-09 | METHACRYLIC ACID PURIFICATION METHOD. |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0178168B1 (en) |
JP (1) | JPS61126050A (en) |
AT (1) | ATE49588T1 (en) |
DE (1) | DE3575418D1 (en) |
Families Citing this family (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3641014A1 (en) * | 1986-12-19 | 1988-06-16 | Wolfen Filmfab Veb | PHOTOPOLYMERIZABLE MATERIAL |
DE3837955A1 (en) * | 1987-11-13 | 1989-05-24 | Basf Ag | Continuous distillation process for producing, for example, hydroquinone-stabilised acrylic acid |
US5258138A (en) * | 1990-07-20 | 1993-11-02 | Ciba-Geigy Corporation | Process for stabilizing ethylenically unsaturated compounds and stabilized monomer compositions |
US5290888A (en) * | 1990-07-20 | 1994-03-01 | Ciba-Geigy Corporation | Process for stabilizing ethylenically unsaturated compounds and stabilized monomer compositions |
US5322960A (en) * | 1993-04-15 | 1994-06-21 | Nippon Shokubai Co., Ltd. | Method for inhibiting polymerization of (meth) acrylic acid and esters thereof |
TW294658B (en) * | 1994-06-02 | 1997-01-01 | Nippon Catalytic Chem Ind | |
US5728872A (en) * | 1994-06-27 | 1998-03-17 | Lutz Riemenschneider | Stabilized acrylic acid compositions |
US5616753A (en) * | 1995-03-20 | 1997-04-01 | Osi Specialties, Inc. | Stabilizers for unsaturated, polymerizable organosilicon compounds |
US5616638A (en) * | 1995-03-20 | 1997-04-01 | Rohm And Haas Company | Cured composite and process therefor |
EP0791573A1 (en) * | 1996-02-21 | 1997-08-27 | Nalco/Exxon Chemicals Company L.P. | Nitroxides as antipolymerants for vinyl acetate units |
DE19622441A1 (en) * | 1996-06-05 | 1997-12-11 | Basf Ag | Process for compressing ethylenically unsaturated monomers |
US5932735A (en) * | 1997-06-13 | 1999-08-03 | Ciba Specialty Chemicals Corporation | Derivatives of 1-oxyl-4-hydroxy-2,2,6,6-tetramethylpiperidine as polymerization inhibitors for (meth)acrylate monomers |
DE19725519A1 (en) * | 1997-06-17 | 1998-12-24 | Basf Ag | Mixture of substances containing compounds containing vinyl groups and stabilizers |
KR20010106405A (en) | 1998-07-14 | 2001-11-29 | 시바 스폐셜티 케미칼스 홀딩 인코포레이티드 | Derivatives of 1-Oxyl-4-Hydroxy- Or 4-Amino-2,2,6,6-Tetramethylpiperidine As Polymerization Inhibitors For (Meth)Acrylate Monomers |
US6300533B1 (en) | 1999-08-16 | 2001-10-09 | Uniroyal Chemical Company, Inc. | Inhibition of polymerization of ethylenically unsaturated monomers |
DE19947868A1 (en) * | 1999-10-05 | 2001-04-12 | Basf Ag | Process of chemical and / or physical treatment of mixtures which contain at least one chemical compound with at least one ethylenically unsaturated group |
AR029410A1 (en) | 1999-12-02 | 2003-06-25 | Crompton Corp | METHOD FOR INHIBITING PREMATURE POLYMERIZATION OF ETHENICALLY INSATURED MONOMERS AND COMPOSITIONS OF THE SAME |
MXPA02005423A (en) | 1999-12-02 | 2002-11-29 | Crompton Corp | Inhibition of polymerization of unsaturated monomers. |
ES2292487T3 (en) | 1999-12-03 | 2008-03-16 | Chemtura Corporation | COMPOSITION AND METHOD TO INHIBIT POLYMERIZATION AND POLYMER GROWTH. |
US6403850B1 (en) | 2000-01-18 | 2002-06-11 | Uniroyal Chemical Company, Inc. | Inhibition of polymerization of unsaturated monomers |
US6344560B1 (en) | 2000-05-03 | 2002-02-05 | Uniroyal Chemical Company, Inc. | Nitroaromatic solubilizer for nitroxyls in aromatic solvents |
BR0112911A (en) * | 2000-08-02 | 2003-08-26 | Uniroyal Chem Co Inc | Stream Recycling |
US6685823B2 (en) | 2000-10-16 | 2004-02-03 | Uniroyal Chemical Company, Inc. | C-nitrosoaniline compounds and their blends as polymerization inhibitors |
KR100812038B1 (en) | 2000-10-16 | 2008-03-10 | 유니로얄 캐미칼 캄파니, 인크. | Blends of quinone alkide and nitroxyl compounds as polymerization inhibitors |
JP4687843B2 (en) * | 2000-12-12 | 2011-05-25 | 三菱瓦斯化学株式会社 | Method for purifying methacrylic acid |
US6504056B2 (en) | 2001-05-01 | 2003-01-07 | Basf Aktiengesellschaft | Transport and/or storage of acrylic acid |
JP4556491B2 (en) * | 2004-05-26 | 2010-10-06 | 三菱化学株式会社 | Polymerization inhibitor, composition containing the same, and method for producing easily polymerizable compound using the polymerization inhibitor |
US7553896B2 (en) | 2005-06-17 | 2009-06-30 | Chemtura Corporation | Ortho-nitrosophenols as polymerization inhibitors |
CN102295284B (en) | 2010-06-28 | 2013-05-15 | 通用电气公司 | Method for converting carbon into oxides of carbon as well as method and device for hydrocarbon cracking |
WO2022230916A1 (en) * | 2021-04-28 | 2022-11-03 | 三菱ケミカル株式会社 | Methyl-methacrylate-containing composition and method for producing methyl methacrylate polymer |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1127127A (en) * | 1966-04-26 | 1968-09-11 | Bp Chem Int Ltd | Stabilization of acrylic acid |
JPS506449B1 (en) * | 1969-06-24 | 1975-03-14 | ||
JPS5010281B1 (en) * | 1970-03-20 | 1975-04-19 | ||
GB1346774A (en) * | 1970-10-05 | 1974-02-13 | Bp Chem Int Ltd | Stabilisation of acrylonitrile |
SU1310384A1 (en) * | 1976-02-20 | 1987-05-15 | Институт Химической Физики Ан Ссср | Method for producing methacrylic acid |
-
1985
- 1985-10-09 EP EP85307233A patent/EP0178168B1/en not_active Expired - Lifetime
- 1985-10-09 DE DE8585307233T patent/DE3575418D1/en not_active Expired - Fee Related
- 1985-10-09 AT AT85307233T patent/ATE49588T1/en active
- 1985-10-11 JP JP60226657A patent/JPS61126050A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
DE3575418D1 (en) | 1990-02-22 |
EP0178168A2 (en) | 1986-04-16 |
JPS61126050A (en) | 1986-06-13 |
EP0178168B1 (en) | 1990-01-17 |
EP0178168A3 (en) | 1987-06-03 |
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